bowers



(No Model.) zsneets-sheet 1.

W. BOWERS 8; W. H. HARRISON. Motor for Sewing-Machines and otherPurposes.

No. 226,967. Patented April 27,1880,

N- EIER5, PHOTO-UTNOGRAPHER. WAsmNGToN D c (No Model.) 2Shee-ts- -Sheet2.

W. BOWERS & W; H,- HARRISON, Motor for-Sewing-Maohines and otherPurposes.

M PETERS. FHDT UNITED STATES PATENT OFFICE.

WILLIAM BOWERS AND WILLIAM H. HARRISON, OF NEWARK, NEW JERSEY; SAIDHARRISON ASSIGNOR TO SAID BOWERS.

MOTOR FOR SEWING-MACHINES AND OTHER PURPOSES.

SPECIFICATION forming part of Letters Patent No. 226,967, dated April2'7, 1880.

Application filed March 20, 1880. (No model.)

To all'whom it may concern Be it known that we, WILLIAM BowERs andWILLIAM H. HARRISON, both of the city of Newark, in the county of Essexand State of New Jersey, have invented certain new and usefulImprovements in Motors for Sewing-Machines and other purposes; and we dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawin gs, and to letters of reference marked thereon,which form a part of this specification.

The object of this invention is to simplify and thus reduce the cost ofconstruction of sewing-machine motors; to render them capable ofperforming their functions more perfectly; to do away with the necessityof frequent oiling, and to remove the liability of soiling the fabricthat is being fashioned by the operator with the oil used in lubricatingthe machine.

The invention consists, primarily, in a friction-motor journaled'upon aninclined yoke pivoted to the floor or to an ear or ears projecting froma bed-plate which is fastened to said floor, said motor having afriction-pulley which is driven by the contact of its periphery with theperiphery of the driving-pulley, which communicates the power thereto.

It also consists in a brake against which the friction-wheelautomatically falls by force of gravitation when the power which holdssaid motor in contact with the driving-pulley is removed by theoperator.

It consists, further, in the method and means by which the motor isforced, held, and re- I leased from contact with the driving-pulley,

which comprises a pitman-rod attached at one end to a lug upon the yokeand by the other to a projecting arm upon a pedal pivoted upon the floorand operated by the foot.

It also consists in the method and means adopted for automaticallyoiling the motor "via, by means of a wick. or other absorbent materialplaced within a hollow or tubular shaft or arbor, said shaft or arborhaving apertures through which the oil which is absorbed by said wick ispoured or replenished, and is also communicated to and lubricates thefrictionwheel journal, all as will be hereinafter more fully set forth.

Referring to the accompanying drawings, which fully illustrate thenature of our invention, and in which similar letters ofreferenceindicate like parts in each of the several figures of the same,Figure 1 is a front elevation, showing the motor proper working orrunning upon a shaft whichpasses through the arms ofthe yoke, showingalso the manner of fastening said yoke to the floor and the brakeagainst which the friction-wheel rests when the machine is not inoperation. Fig. 2 is a side elevation, showing the general connection ofthe motor with the pedal, the pulley from which the motive power isreceived, and the connection with the machine to which the power isapplied. Fig. 3 is a plan view of the hollow or tubular shaft 'or arbor;Fig. 4 an end view, and Fig. 5 a section of the same, more fully showingthe manner of lubrication.

In carrying out our invention we construct the inclined yoke A,' whichis adapted to be pivoted to the floor or to a bed-plate, Z), fastenedthereon by the ear or ears 0. The said yoke has cast or otherwisefastened upon one of its sides the lug d, to receive the pitmanrod 6,which connects it to the arm 9 upon the pedal f. The arms of the yokealso form bearings for the shaft or arbor h, upon which thefriction-wheel B and the accompanying band-wheel k, to which it issecured, revolve.

The brake l is held in position in a socket, m, Fig. 1, which isconstructed upon the bedplate I), and which allows the brake to beraised or lowered, as may be required, said brake being firmly held inthe desired position by the set-screw n, Fig. 1.

The friction-wheel B may be composed of any suitable material. Weprefer, however, to construct it of solid leather or of several layersof leather in the manner indicated in Fig. 1. This friction-wheel B isjoined to the band-wheel k by screw-bolts and nuts 0, or in any otherconvenient manner.

The hollow arbor or shaft h, upon which the friction wheel and itsaccompanying bandwheel revolve, is held stationary in the yoke A by aset-screw, or in any other appropriate manner. The said hollow shaft his perforated at q, for the introduction of oil into the chamber 1 andalso at s, for the insertion of wick, by means of which, through thesame, the oil is supplied by capillary attraction to the friction andband wheels above mentioned. One

end of the arbor or shaft h is left open to receive the stopper 1),which is adapted to be removed when it becomes 'necessary to change thewick or to cleanse the chamber 1' of the shaft h, all as indicated inFigs. 3, 4:, and 5.

in operating our invention, the shafting to, which carries the pulleys00, Fig. 2, being in motion, the operator applies her foot to the pedalf, which, by means of the pedal-arm g, the rod 0, and the yoke-lug d,forces the frictionwheel B, which until then has been resting upon thebrake 1, into contact with the pulley x, from which it instantlyreceives motion, which, in turn, communicates it to the bandwheel, andthus sets the sewing or other machine to which it may be applied inoperation. When the operator desires to stop the action of the machineshe merely removes her foot from the pedal, when the weight of thefrictionwheel and its attachments causes it to fall again upon thebrake, thereby causing the revolutions of the said wheel to cease, andthus avoidin g the use of springs, which have heretofore been employed.

As will be apparent upon examination of Fig. 2, the distance between thebrake l and the friction-wheel B, when the motor is in operation, orbetween the friction-wheel B and the pulley 00, when it is at rest, isvery small, requiring but a slight pressure of the foot to set themachine instantaneously in motion, and causing the machine immediatelyto stop when the pressure is removed.

The speed at which the sewing-machine is run can be regulated by theamount of pressure applied to the pedal by the foot of the operator, aslight pressure of the friction-wheel B upon the pulley 00 allowing someof the motion to be lost, while a heavy pressure causes all the motionof said pulley 00 to be communicated to the motor, as will be readilyunderstood.

In using the automatic oiling apparatus it is only necessary to pour aquantity of oilinto the chamber 1", which will be taken up by the wickit, through which it is in sufficient quantities supplied to the wheels,thus not only avoiding the necessity of frequent oiling, but saving theoil by preventing the usual waste, and also preventing the liability ofsaid oil soiling the garments or fabrics in course of manufacture.

The yoke above referred to, although shown in an inclined position, maynevertheless be pivoted to the floor in a vertical position, and

be forced out of contact with the driving-pulley by a spring properlyadjusted for the purpose.

Having thus described our invention, what We claim, and wish to havesecured by Letters Patent, is-- 1.- In friction-motors forsewing-machines, the combination, with the driving-wheel of asewing-machine and the driving-pulley from which the poweris received,of a yoke or frame pivoted to the floor, a shaft supported thereby, theband and friction wheels revolving on said shaft and driven by thecontact of the peripheries of said friction-wheel and driving-pulley,arranged and operating substantially as and for the purposes set forth.

2. The combination, with the driving-wheel of a sewing-machine and thedriving-pulley which communicates the power, of an inclined yoke orframe pivoted to the floor, a shaft supported thereby, a band andfriction wheel revolving on said shaft and driven by the contact of theperipheries of said friction-wheel and driving-pulley, saidfriction-Wheel being capable of automatic disengagement from contactwith said driving-pulley by means arranged and operating as and for thepurpose set forth.

3. In a friction-motor for a sewing-machine, the combination, with thedriving-wheel of a sewing-machine and the driving-pulley whichcommunicates the power, of a yoke or frame pivoted to the floor, ahollow shaft supported thereby capable of receiving and retaining oiltherein for lubrication, and the band and friction wheels revolving onsaid shaft and driven by the contact of the peripheries of saidfriction-wheel and driving-pulley, arranged and operating as and for thepurposes set forth.

4. The combination and arrangement of the friction-wheel B, carried bythe inclined yoke A, pivoted to the floor, and the adjustable brake Z,secured in the socket an, arranged and operating as and for the purposeset forth.

5. The combination. of the yoke or frame carrying the band and frictionpulleys and pivoted to the floor, and the driving-pulley whichcommunicates motion to said friction pulley, of a rod connecting saidyoke with a pedal operated by the foot, for forcing and holding saidfriction-pulley into contact with the periphery of the driving-pulley,as and for the purposes set forth.

6. The combination, withthe yoke or frame A, pivoted to the floor, theband and friction wheels B, carried by said yoke, and the driving-pulley00, of the pitman or connectingrod 0 and the pedal f, arranged andoperating as and for the purpose set forth.

7. The combination, With the yoke or frame A, pivoted to the floor andhaving the lug cl, the band and friction wheels is B, carried by saidyoke, and the driving-pulley w, of the pitman or connecting-rod e andthe pedal f, In testimony that we claim the foregoing we carrying thearm g, all being arranged and have hereunto set our hands this 11th dayof operating as and for the purposes set forth. March, 1880. 8. Thecombination, with the driving-pul- 5 ley at, of the band-wheel k and thefriction- WILLIAM BOWERS.

wheel B, rigidly secured thereto, made en- WILLIAM H. HARRISON. tirelyof leather and driven by the contact of its periphery with that of saiddriving-pulley, Witnesses: arranged and operating as and for the pur-OLIVER DRAKE, 1o poses set forth. CHARLES H. PELL.

